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v F.P.TABER,

EVAPORATING PAN. I No. 277,855. ate ted. May 15,1883.

, a pg FRANKLIN P, ,TABER; or Access, new

STATES;

ironmnsslenon or;trwo-T11Ihns To JOSEPH A. COOK AND GALVIN w; conKLin',-ior;sii'1i1n PLACE,

' nvnponATmeemf sencIFIcA'rIowrermin re of Letters-Patent No. 277,855, d t d-Ma 15; 1883.

C Application filed February 19, 1:883. '(No model.l v

To all whom itxmay concern: g

Be it known that I, FRANKLIN P. TABER, a citizen oftheUnitcd States,residingat Auburn, in the county of Cayuga and State ofNew 5 York, have invented new and useful Evaporating-Pans, of which the following, taken in connection with the accompanying drawings, is a full, clear andexactdescription. 1

, My invention relates to improvements" in IQ evaporating-pansmadeofmetahin'which steam is usedasthe'agent through which heatis applied to the outer surface of the evaporatingpan, and the peculiar means of bringing and retaining the steam in contact with the outer I 5 surface ot' such evaporating-vessel, whereby an intense uniform heat is distributed throughout the entire surtacoof the pan and the-soluticn subjected to a greater proportionate amount of heating-surface uniformly hosted 20 than in anypartnow in use, the cost of evaporation greatly reduced by the use of a shal lcw pan hating a large evaporating-surface, and the fuel, labor, and skill demanded to op;

crate the same. l v a 2 In the accompanying drawings, Figure l' represents aseries of pans connected in my apparatus for the-manufacture of sugar, salt, 85s., patented No ember 28, 1882, by Letters latent issuedby the United States, andnum- 3o bered 268,056. Figs. 2 and 3 each represent a sectional View of one of, saidpans ingrea'diness to be connectedin or with said apparatus as a part thereof.' Fig. represents a section oil the'main return-pipe O of said appara- 5 tee with its lateral L. showing the-valve 1?, failing toappeair in Fig.1 by reason of the floor there showm:

' Similar letters 'of-'reference indicate corre sponding parts in the diiferent figures in so far 40 as the lettering of one isapplicable to the other. 1 j

A A A represent the evaporating-pans, each -of which is supplied with an outer jacket, B B p B, so constructed as to preserve between the 5 pan A A A and thcjacket B B B the steam- 1 chamber 0 C G, andthat at the edgeD D D of thejacket B B B a stcarn-fittingjoint is made atits point of contact with the pan A A A and the two securely riveted and welded together. 50 The steam-chamber C O is supplied with steam thronghinlets or holes E E E, made through I the jachetB B at a sufficient, distance iabore the bottomof such jacket toprerent dry steam introduced to the steam-chamber coming in contact with water of condensationiin the botpressnre of steam throughout the pan) i sjconnected by pipes F F F, connected with the pipe G, which cncirclesthe pan and is adapted tobe connected, in the apparatus above mentioned, with the main supply-pipe H, extending from the boilers M11 The pan A-A A.and

bolted together by means ofstag-bolts I I I I, Figs. 2 and 3, extending at proper distances from each other throughout the entiresteamspace betw en the pan and jacket, and so inserted the the ends of thebolts'cxtending through the pan, A,- A A may be hammered A, and the othen'end thereof extended't'hrough and beyond the outer surface of the jacket B B B, leaving the threads cut thereon exposed, thereby adapting the outer surface of the pan and jacket to receive and hold a non-conducting substance, washers and nuts are placed upon theends of the stayholts to secure and hold more firmly the non-conductor.

in'giis made through B B B to permitthe es- "cape of water of condensation from the steamspace 0 G, the opening being supplied with proper connections to admit'of its being conof my apparatus for the manufacture of sugar, salt, 850., above referred to. Thesteani-chamher 0 G is supplied with an air-valve, N N, by means of which air in said chamber at the time when steam, is first admitted is allowed to escape.

claim is t 1. In an evaporating-pan, the combination,

of the in ih! pipeprorided with laterals penetrating said' team-chamber at different points upon its sides and ends for distributingauninected at that point with the returnpipes It Having now described myinvention, what I tom otthcjacketB B, each of which said -inzlets or holes, (of which it is foundjadvisable to have oneor more on each side of the pan, and

- by means thereofequalize .the supply ahd:

the jacket B B B are securely andfirmly staysmooth; with the inner siirface, of the pan A A J J J, aftera-pplying which The jackets 13-13 B are eachformed with the inner surface inclining toward'apoint, as K K K, at which an openwith thesteanrchalnber surrouding the pan,

Ioo

form heat thronghoufi the entire surface olthe nuts,':1nd washers for holding the jacket and pan, as set forth. pun together, and also to hold the non-eon- 2. In an eva iorating-puu, the eonibinutien, ducting material upon the. outer face of the [5 with the steam-chamber surrounding the pan, jacket, substantially as described.

the main pipeiievinglaterais penetrating Sail In witness whereof have hereunto set my chzunher at different pointsupon its sides and hand, at Auburn, aforesaid, this 8th day of' ends, suiil luierals being provided with sepe- February, 1883, in presence of two subscribing rate valves or QOCiiS for regulating the supply witnesses.

and pressure ofsteani throughout the entire FRANKLIN P. 'IABER. surface of the pan, as set forth. Witnesses:

S. In an evaporutirig-pan, the combination, P. MGLAUGHLIN,

with the steam-jacketed 1)Eli,0f the stuyholis, R. l DRUMMOND. 

